Syringe head



Patented ug. 9,Y 1927.

iinivs'i KALLMEYER, or Vivi'ivsr YORK, iv. f Y.

SYRINGE HEAD.

Application nea February 2, 1924. seriai No. Gedisa scribedhereinaftenshown inthe .drawings andfiinally pointed out in the claims.Y

In the accompanying drawings, Y Y Fig. 1 is a longitudinal sectionalyy'View taken on line 1 1 of Fig. 2 othe'uppermostv or outermost end 'ofVmy improved i syringe head; y

Fig. 2 is an end view thereof; Fig. 3 is an end View of another gembodying my invention; Fig 4 is a longitudinal line v4-4 of Fig. 3. i ll Fig. 5 is a plan .View of the Jform shown in Figs. 3 and 4, showingthe general direction of the jets;

Fig.v 6 is a perspective View of ahead emform " :ai loodyng myinventiomsliowing thesame j Vapplied to a particular orm of nozzle;

Fig. 7 isa section taken on line7-7 of Fig.6; and 2 y. Fig. 8 is anenlarged perspective vie-w of the outer end of the head shown in Figs. 6and 7.

Similar characters of reference indicate corresponding partsthroughoutfthe various.

views. Y

Referring to the drawings and more particularly to Fig. 6, there isshown a nozzle 10, which is provided-with longitudinal ribs 11, withvalleys 12 therebetween. These ribs 11, and valleys V12, taperfrom oneend o f the nozzle portion to the tip thereof.`v Within the valleyportions there are arrangedopen- Y ings 13, 'either with one opening foreach 'valley or two or lmore, as desired.- vThe `tapered end of thisnozzle forms the head 50. thereot and inthis embodiment of theinsectiontaken on the end of the nozzle curved downwardly` ,vention is as alsoshown in Figs. 1 and 2, y, I

and inwardly. The peak 1V 14' of thenozzle in theembodiment sliownfinFigs. 1 andv 2' y is a circumferential, `rounded,portion. The. curveddownward Vand inward depression Ywhich is indicatedyby. .15, forms, withthe i' body portion of the nozzle, a chamber 16, and in this embodimentthis chamber is single, and lextends circumferentially of the nozzle.Laterally, inwardly, .of this vchamber 16, openings are ,provided whichare indicated by l17, and .these openings "are Y formedin the walls ofthey member 15, `so that the wateror other solution Yis directedinwardly perpendicularly to the axis of the nozzle. Iny the embodimentof Figs. 1 and2, i

threeopenings areuprovided. The ,jets'there-V bykformed mingle lwithinthe'cavity18 and perform their .cleansing function. Y

j gradually` eXude over the .peak4 14 and. Ii .thereby come in contactwith the body. and

In the embodiment shown in Figs. 3y Vand 4, the chamber 16 -isvreplacedby three communicating chambers 2O formedby the walls ofthehead and intermediateofthese chambers depending portions 23, `whichextend j inwardly of the tip ofv the head, so as tol formdepressedp'ortions between the walls formingthechamber 20. yThe wallsforming the chambery 2O are provided at the curved inward portionthereof k'with openings 22 which cause the Vjetsto be directed inwardlytoward the aXis of the head. In the embodiment of Figs. 3 and 4, thethree sov chambers 2O `are provided with jets that are formed anddirected preferably, in cachinstance in a direction intermediate the twoother chambers. This action of the jets is 'clearly shown in Fig. 5, inwhich each chamber 20has its opening 22 andeachjet of each chamber 20 isdirected between the j other two chambers. By this` arrangement. thejets may be freeto project and impinge upon the parts of the bodyinstead of'being merged and intermingled, as is the'case with Figs. 1and 2. Instead of providing three suchchambers with one opening each, a

greater or less number yof chambers can of `course be provided andeachychamber may of course have one opening but in each case clination ofthe Walls forming the openingsA so that that the jets will pass eachother Without striking; this may be readily ac.- complished by a certainrelativity of the inclinations of the respective Walls forming theopenings. T he advantage of this form is that the jet may directlycontact With the body Without having any of its forcellost as Would bethe casev if the jets impinge upon each other. v 1

The heads which have been describedV in connection with Figs. 1;5v aresubstantially the saine as the part of the nozzle describedingconnection with Figs. 7 andV 8, andr in this case the Walls of thenozzle forming the ribs fhave such a contour that they form the Walls'of the chambersQO, While the Walls forming the end` of the'valleys l2form thel depressed portions of the tip ofthe head and these depressedportions permit the jets to *pass so that the jets may impinge against fthe body with their full force Without being diminished by striking anyWall of the head or striking any of the jets themselves. ln theembodiment shown in Fig. 6 the Walls ofthe nozzle are thus'so arrangedthat the Walls vofthe ribs .ll merge into the Walls forming the Chambershaving jet openings and the Walls of the valleys form vthe intermediateportions depressed lin respect to the chambers 520.v

As stated,'one of the further important featuresY of the invention isVto have the Walls-of the jetopenings arranged so as to be .substantiallyperpendicular tothe axis `or at least in such a Way that the jetsthemselves do not'project directly outwardly of theftipY ofthe nozzle,along the axes thereof. The invention thus overcomes the use of devicesWhichhave their openings directed -Y against the 'most delicatefand mostlikely to be injured parts Vof the body, the contact with which byforeign matter sometimes is a cause of death;v Whereas, the direction ofthe jets according to my imj'orovedinvention enables certain Aparts ofthe body to ber directly 'impinged vby the jets vvithout their cominginto Contact with the moreV delicate parts just referred to. Y

' The heads vfor syringes embodying my in'- vention/ may be made eitherof glass or hardI rubber or other suitable material Well known to oneskilled in the art. The manufacture thereof is inexpensive and theoperation of the same is at all times under control. The

further advantage of my improved invenhavelostztheir 'pressure'effect'acld SO Would 'not he injurious;

I have described and shown various em bodiments of my invention but l donot Wish to be limited thereto since the invention may be embodied invarious forms,the spirit of the invention being delined by the appendedclaims. Y

l claim as nei'v: r y

l. A head for syringes comprising: a

chamber-'forming elongated body-member of Waver-like extend-ing crosssection so as to form alternative ribs and channels on its outercircumference; in combination With an invvardly domed end Wall havingiiuid outlet openings directedA substantially perpendicularly to theaxisof the body-member, so that the fluid jets do not strike'directly jagainst the epidfermisfbut mingle Within the cavity of the domed vvall,to exiide `gradually over the crest of the domed part. 2. A lhead forsyringes compri'sing:y

chamber-forming elongated bodyelnembe'r ofl wave-like extending crosslsection so Vas to form alternative ribs and channels on itsouter'circumference; in combination Withv an inwardly domed end Wallhaving iiuid outlet lopenings directed substantially vperpendicularly tothe axis of the body-member, so that the 'iuid jets do not strikedirectly against the epidermis but mingle Within the cavityv Y of thedomed Wall, to exude gradually over the crest'of the domed part; anda'creet part between the outer circumferential Wall` and the inwardlydomed end Wall having alterv Y nating higher portions" and depressedpor.-y tions, so as to facilitate the outflow of the fluid from thecavityof the 'domed end part into Vthe channels of Vthe circumferentialpart. i

3. A headfor syringes comprising; a chamber-forming elongatedbody-member of Wave-like Yextending cross section 5' in combination withan inwardly domed end Wall; and having iiuid outlet openings in theinwardly vreceding parts of the longitudinal grooves `of thecircumference; andr having further in the said'inivardly domed end WalllUU lui,

fluid outlet openings, which are directed subtationally toward the vaxisof the body men'l 4. A head for syringes-comprising ameniber having aplurality of chambers arranged circumferentially of the axis of themem-- ber and communicating "With eachother, each chamber having a jetopening, sa'id opening being directed t'ov'ard the axis of the member,and the outer port-ions of said v chambers extending beyond the portionsof the member intermediate of the chambers 5. A head for syi'unge'scomprising a longitudinal member having 'exterior rib and val# leyportions tapering tovvard theout'erfend thereof, said member having 'achamber formed by extensions of the rib portions forming extendedportions ofthe head of the' member and 'each having'al 'openingtherethrough directed toward the axis of the member, and said Valleyportions terminat-` ing in Valley portions of the head of the member`forming depressed portions in ref speot tothe extended portions of .thehead of the member, said depressed portions be- `ing out of line Withthe openings in the ex-V tendedportion permitting Huid 'topassthereoverv Without impngement withr the 'Y H y walls thereof.4 Y' Ke p *Intestimony thatI claimthe..foregoingas` my invention, I havesigned my name, here-fV i' ERNST KALLMEEnl Y 'fifa

